James is ( ) French than Polly.
A. a bit better at
B. a bit more good at
C. a bit good at
第1题:
DES加密算法的密文分组长度和有效密钥长度分别是()
A.56bit,128bit
B.64bit,56bit
C.64bit,64bit
D.64bit,128bit
第2题:
A.44100bit/s
B.52000bit/s
C.75000bit/s
D.115200bit/s
第3题:
LTE建网目标对频谱效率的要求是( )
A.峰值DL5bit/Hz和UL2.5bit/Hz
B.峰值DL4bit/Hz和UL3bit/Hz
C.峰值DL3bit/Hz和UL2.5bit/Hz
D.峰值DL2bit/Hz和UL4bit/Hz
第4题:
82、给出以下程序的运行结果____。 tup=("PTYHON","BIT",123,"GOOD",123) newtup=tuple(set(tup)-{"PYTHON"}) print(newtup)
第5题:
第6题:
The cake looks ______ and it tastes even _____.
A、well; good
B、nice; better
C、good; worse
D、better; best
第7题:
第8题:
The _better_ (good) he feels, the more work he will do
第9题:
若通信系统传码率RB=2400Baud,对于二进制信号,系统传信率为 bit/s;对于四进制,系统传信率为 bit/s。
A.2400 bit/s 4800 bit/s
B.2400 bit/s 2400 bit/s
C.4800 bit/s 4800 bit/s
D.4800 bit/s 2400 bit/s
第10题:
2、必然事件的熵为()。
A.-1bit/符号
B.0bit/符号;
C.1bit/符号;
D.2bit/符号;